Enhancers are genetic elements that have major roles in determining cell type-specific gene expression patterns and responses to internal and external signals. Mammalian genomes contain millions of ...

Scientists are exploring how organisms can evolve elaborate structures without Darwinian selection. Charles Darwin was not yet 30 when he got the basic idea for the theory of evolution. But it wasn’t ...

Biological diversity, or "biodiversity," refers to variability found at all levels of biology. Biodiversity is commonly broken down into three levels or types: genetic diversity, species diversity, ...